<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
	</head>
	<body>
		<input type="button"  value="点击弹框" onclick="tan()"/>
		<script>
			//alert弹出框内容实现换行用\r
			function tan(){
				alert('啦啦啦啦啦啦啦啦啦啦\r呜呜呜呜呜呜呜呜\ryaoui.com 技术博客')
			}
		</script>
	</body>
</html>
